Bushing for bung-holes.



UNITED STATES PATENT OFFICE.

NELSONII. MEDBERY, OF PROVIDENCE, RHODE ISLAND.

BUSHING FOR BUNG-HOLES.

SPECIFICATION forming part of Letters Patent No. 694,769, dated March 4, 1902. Application filed July 6,1901. Serial N0. 67,336. (No model.)

the bung-hole to provide a solid, preferably a metal, bushing for a wooden bung. It is fully described and illustrated in this specification and the annexed drawings. I

Figurel is a perspective view of the split ring first inserted in the bung-hole. Fig. 2 represents a section of the barrel each side of the bung-hole and the split ring inserted in the bung-hole. Fig. 3 is a top view of the tool used to hold the split ring while it isbeing spread to fasten it in the bung-hole. Fig. 4 represents the split ring. in place in the bung-hole, supported by the holder seen in Fig. 3, and thering-spreading tool also in the ring. Fig. 5 represents the same parts as Fig. 4 with the ring-spreader screwed clear down and the projections on the split ring forced into the sides of the bung-hole. Fig. 6 is a top view of the bushing. Fig. 7 represents the split ring in the bung-hole with the holder and spreading-tool removed and the bushing screwed down firmly in place ready to receive a hung. V

The construction and application of the devices are as follows:

In Fig. l is shown a malleable metallic ring B, made tapering downward and having a screw-thread 0 made on its inside. Slits D D are made in the lower edge of the ring B, extending upward some ways into the ring, to allow the lower part of the ring to be expanded, and projections N N are made on the lower edge outside of the ring to enter the sides of the bung-hole .I when" the ring is expanded and hold it fast in place.

The spreading-tool A, which has a conical head with a screw-thread made on it and a T-handle F on its upper end, is then inserted in the ring B, as seen in Fig. 4. The handle F is then taken OE, and the holder, which consists of a ring S, having a thread on it fitting into the top of the ringB, and a handle R to hold it by, (see Fig. 3,) is then screwed down into the top of the ring B to hold it while the spreading-tool A is screwed down by the handle F until it has spread the split part of the ring out, as seen in Fig. 5, in which the projections N N are shown as being embedded in the sides of the bung-hole; The holder E and spreading-tool A are then removed and the bushing H, which consist of a ring having a screw-thread on its outside and a horizontal flange M on its upper edge and'a taper hole H through it suitable for a bung, (see Figs. 6 and 7,) is then entered and screwed into the split ring until the flange rests solid on the surface of the barrel K. This makes a bush ing firmly clenched to the wood around the bung-hole and that will last in good order as long as the barrel it is in.

Having thus described my improvements, what I claim as new, and desire to secure by Letters Patent, is-

1. In a bung-hole bushing a tubular member made tapering both interiorly and exteriorly and having a screw thread in its inside and projections on its outside, with slots inits smaller end allowing the lower half of said tubular member. to expand to fill the bung- .hole, in combination with a member adapted NELSON H. 'MEDBERY.

In presence of- AnrHUmW. Jovon, HOWARD E. BAnLow. 

